Study Notes on Saavedra and Silverman: Phobia of Buttons -

Saavedra and Silverman Study Overview

  • Study Reference: Saavedra, L. M., & Silverman, W. K. (2002). Case Study: Disgust and a Specific Phobia of Buttons. Journal of the American Academy of Child and Adolescent Psychiatry, 41(11), 1376-1379.

The Psychology Being Investigated

  • Classical Conditioning Definition: When you connect two things together which trigger a response. This can be good or bad. For example, food already makes a dog salivate but if you kept ringing a bell and gave food to the dog after, by ringing just the bell the dog will salivate.

  • Historical Background: Investigated by Ivan Pavlov in 1927, who observed that dogs salivated at the sight of researchers associated with food (unconditioned stimulus, UCS).

    • Key Terminology:

    • Unconditioned Response (UCR): Salivation to food.

    • Conditioned Stimulus (CS): Neutral stimulus (e.g., bell) that, after association with UCS, leads to a conditioned response (CR).

    • Conditioned Response (CR): Salivation to a conditioned stimulus.

Phobias and Their Formation

  • Phobias can develop through classical conditioning, defined as the irrational and persistent fear of an object or event that poses little real danger.

  • Other concepts:

    • Expectancy Learning: Neutral or non-threatening objects/events become associated with threatening outcomes, leading to fear.

    • Evaluative Learning: Involves associating a neutral stimulus with negative emotions (like disgust), suggesting that both disgust and fear can be targets for phobia treatment.

Research Methodology

Aim

  • To examine classical conditioning's role in fear and avoidance related to a specific phobia of buttons and see if exposure therapy could reduce disgust and distress.

Method

  • Research Design: Clinical case study involving a single participant whose behavior and treatment were examined in detail.

  • Data Collection: Self-reports and interviews from both the participant and his mother regarding the phobia onset and behavior. Observations during treatment sessions were also key to assessing behavioral improvements.

  • Measurement of Results: Measured distress levels using a 9-point "Feelings Thermometer."

Sample

  • Participant: A 9-year-old Hispanic American boy diagnosed with a specific phobia of buttons, which had been present for approximately four years.

  • Onset of Phobia: Triggered by an incident in which he knocked over a bowl of buttons in front of peers, leading to distress and avoidance behaviors.

Procedure

  • Informed consent obtained from the boy and his mother. The study aimed to identify any underlying trauma.

  • A hierarchy of feared stimuli was created based on the participant's responses, ranging from less (e.g., large denim buttons) to more distressing stimuli (e.g., small clear buttons).

Treatment Interventions

Contingency Management (Positive Reinforcement)

  • Focuses on behavior through rewards; the participant was rewarded for decreasing fear and handling buttons.

  • Treatment sessions lasted 20-30 minutes with observed interactions with buttons and the recording of distress on the Feelings Thermometer.

  • Outcome: Positive behavior change noted, but subjective distress levels sometimes increased with repeated exposure.

Imagery Exposure Therapy

  • Involves cognitive techniques where patients visualize feared objects. E.g., imagining buttons falling on him, exploring feelings associated with those visualizations.

  • Utilized the hierarchy method to progressively expose the participant to previously feared stimuli through imagery.

  • Results showed a significant reduction in subjective distress ratings from a score of 8 (most distressing) to 3 after completing therapy sessions.

Results

  • Positive Reinforcement Therapy Outcomes: Initially increased positive interactions with buttons, but also higher emotional distress ratings were observed, especially noted in session four evaluations.

  • Imagery Exposure Therapy Outcomes: Demonstrated a more effective reduction in distress ratings post-therapy than positive reinforcement alone. This therapy helped tackle negative associations with buttons.

  • Long-term Follow-ups: Conducted at 6 and 12 months showed the participant no longer met the diagnostic criteria for specific phobia and was able to function normally, including wearing small buttons.

Conclusion

  • Study findings indicate that both treatment approaches were beneficial; however, imagery exposure was particularly effective in modifying responses linked to the phobia.

  • Emphasizes the importance of addressing emotions and cognitions, particularly regarding disgust and evaluative reactions in treatment protocols for phobias.

Key Terms

  • Classical Conditioning: Learning through association of stimuli.

  • Phobia: An irrational and persistent fear leading to anxiety and avoidance.

  • Evaluative Learning: Conditioning where attitudes are shaped by emotions and thoughts towards stimuli.